Page authors: Don Knoke, David Giblin
Lathyrus littoralis
beach peavine, silky beach vetchling

Distribution: Occurring in the coastal counties in Washington; British Columbia to California.

Habitat: Sand dunes and sandy beaches.

Flowers: May-July

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bumblebees, bees, butterflies


Herbaceous, grey-villous perennial from strong rhizomes, the stems 1-6 dm. long, prostrate to erect, not climbing.


Leaves pinnate, leaflets 4-8, oblong-oblanceolate, 1-2 cm. long, the rachis only 1.5-3 cm. long, flattened and prolonged as a straight bristle; stipules ovate-hastate to lanceolate, equaling the leaflets in length.


Inflorescence of racemes on long peduncles arising from the leaf axils; flowers 2-6, 12-18 mm. long; calyx 8-11 mm. long, the 5 lanceolate teeth as long as the tube; corolla pea-like, the banner 14-18 mm. long, pink to red or purple, the claw 2/3 as long as the blade; wings and keel usually white, clawed, the keel tip slightly recurved.


Pod about 3 cm. long and 1 cm. broad, 1- to 5-seeded, hairy.

Accepted Name:
Lathyrus littoralis (Nutt.) Endl. ex Walp.
Publication: Repert. Bot. Syst. 1(4): 722. 1842. 1842.

Synonyms & Misapplications:
(none provided)
Additional Resources:

PNW Herbaria: Specimen records of Lathyrus littoralis in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Lathyrus littoralis checklist entry.

OregonFlora: Lathyrus littoralis information.

E-Flora BC: Lathyrus littoralis atlas page.

CalPhotos: Lathyrus littoralis photos.

USDA Plants: Lathyrus littoralis information.

17 photographs:
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